Gil's LotD
http://asame2.web.infoseek.co.jp/mariof.html I'm not sure what this is, but it looks Japanese fanart of Nintendo characters.
http://youtube.com/watch?v=9ZBcapxGHjE At the end of this story is video footage of ice tea being poured on a plane doing a barrel roll and not a drop is spilled.
http://artdent.homelinux.net/evolve/vote/ Users vote on pictures to help create better looking pictures.
http://www.electricsheep.org/ Electric sheep is similar to the above website. It's a screensaver that connects with other users to download interesting patterns to show, and they are voted on to make better ones.